140809474 has 8 divisors (see below), whose sum is σ = 227461500. Its totient is φ = 64988976.

The previous prime is 140809451. The next prime is 140809489. The reversal of 140809474 is 474908041.

It can be written as a sum of positive squares in 2 ways, for example, as 139405249 + 1404225 = 11807^2 + 1185^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2707849 + ... + 2707900.

Almost surely, 2^140809474 is an apocalyptic number.

140809474 is a deficient number, since it is larger than the sum of its proper divisors (86652026).

140809474 is a wasteful number, since it uses less digits than its factorization.

140809474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5415764.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 140809474 is about 11866.3167832314. The cubic root of 140809474 is about 520.2482468533.

The spelling of 140809474 in words is "one hundred forty million, eight hundred nine thousand, four hundred seventy-four".